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JEE Main2002MathematicsFunctionsActual

The domain of ⁻¹ [ ₃(x / 3) ] is

Options

  1. A[1, 9]
  2. B[-1,9]
  3. C[-9, 1]
  4. D[-9, -1]

Correct answer

A. [1, 9]

Step-by-step solution

f(x)= ⁻¹ ( ₃ ( x 3 ) ) exists if -1 ₃ ( x 3 ) 1 3⁻¹ x 3 3^1 1 x 9 or x [1,9]

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